60 minutes of highlights presented by Steven E. Jones, Ph.D. and Kevin R. Ryan in 2009.
Dr. Jones is a well published professor of physics, and Mr. Ryan was previously employed by Underwriters Laboratories (UL).
They describe some of the findings they have published in peer reviewed scientific papers.
They argue that scientific evidence refutes the official conclusion by the National Institute of Standards and Technologies (NIST) that explosives were not involved in the collapse of the World Trade Center Twin Towers and Building 7 on September 11, 2001.